package case1;

class Singleton{
    private static Singleton instance = new Singleton();
    public static Singleton getInstance() { return instance;}
    private Singleton(){}
}

public class Demo1 {
    public static void main(String[] args) {
        Singleton s1 = Singleton.getInstance();
        Singleton s2 = Singleton.getInstance();
        System.out.println(s1 == s2);
    }
}
